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| author | Karel Zak | 2010-08-24 12:04:24 +0200 |
|---|---|---|
| committer | Karel Zak | 2010-08-24 12:04:24 +0200 |
| commit | 9ef30d61783eb738040eefb1bbacdc50b39bf7d5 (patch) | |
| tree | b7d4ab6bdf2d84d8d58f70dd66501ec368277bce /include/blkdev.h | |
| parent | blockdev: add BLKDISCARDZEROES (diff) | |
| download | kernel-qcow2-util-linux-9ef30d61783eb738040eefb1bbacdc50b39bf7d5.tar.gz kernel-qcow2-util-linux-9ef30d61783eb738040eefb1bbacdc50b39bf7d5.tar.xz kernel-qcow2-util-linux-9ef30d61783eb738040eefb1bbacdc50b39bf7d5.zip | |
include: cleanup blkdev.h
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'include/blkdev.h')
| -rw-r--r-- | include/blkdev.h | 79 |
1 files changed, 42 insertions, 37 deletions
diff --git a/include/blkdev.h b/include/blkdev.h index 2179c6ed8..5344a2bab 100644 --- a/include/blkdev.h +++ b/include/blkdev.h @@ -8,52 +8,57 @@ #define DEFAULT_SECTOR_SIZE 512 -#if !defined(BLKROSET) && defined(__linux__) - -#define BLKROSET _IO(0x12,93) /* set device read-only (0 = read-write) */ -#define BLKROGET _IO(0x12,94) /* get read-only status (0 = read_write) */ -#define BLKRRPART _IO(0x12,95) /* re-read partition table */ -#define BLKGETSIZE _IO(0x12,96) /* return device size /512 (long *arg) */ -#define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */ -#define BLKRASET _IO(0x12,98) /* set read ahead for block device */ -#define BLKRAGET _IO(0x12,99) /* get current read ahead setting */ -#define BLKFRASET _IO(0x12,100)/* set filesystem (mm/filemap.c) read-ahead */ -#define BLKFRAGET _IO(0x12,101)/* get filesystem (mm/filemap.c) read-ahead */ -#define BLKSECTSET _IO(0x12,102)/* set max sectors per request (ll_rw_blk.c) */ -#define BLKSECTGET _IO(0x12,103)/* get max sectors per request (ll_rw_blk.c) */ -#define BLKSSZGET _IO(0x12,104)/* get block device sector size */ +#ifdef __linux__ +/* very basic ioclts, should be available everywhere */ +# ifndef BLKROSET +# define BLKROSET _IO(0x12,93) /* set device read-only (0 = read-write) */ +# define BLKROGET _IO(0x12,94) /* get read-only status (0 = read_write) */ +# define BLKRRPART _IO(0x12,95) /* re-read partition table */ +# define BLKGETSIZE _IO(0x12,96) /* return device size /512 (long *arg) */ +# define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */ +# define BLKRASET _IO(0x12,98) /* set read ahead for block device */ +# define BLKRAGET _IO(0x12,99) /* get current read ahead setting */ +# define BLKFRASET _IO(0x12,100) /* set filesystem (mm/filemap.c) read-ahead */ +# define BLKFRAGET _IO(0x12,101) /* get filesystem (mm/filemap.c) read-ahead */ +# define BLKSECTSET _IO(0x12,102) /* set max sectors per request (ll_rw_blk.c) */ +# define BLKSECTGET _IO(0x12,103) /* get max sectors per request (ll_rw_blk.c) */ +# define BLKSSZGET _IO(0x12,104) /* get block device sector size */ /* ioctls introduced in 2.2.16, removed in 2.5.58 */ -#define BLKELVGET _IOR(0x12,106,size_t) /* elevator get */ -#define BLKELVSET _IOW(0x12,107,size_t) /* elevator set */ +# define BLKELVGET _IOR(0x12,106,size_t) /* elevator get */ +# define BLKELVSET _IOW(0x12,107,size_t) /* elevator set */ -#define BLKBSZGET _IOR(0x12,112,size_t) -#define BLKBSZSET _IOW(0x12,113,size_t) -#define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */ +# define BLKBSZGET _IOR(0x12,112,size_t) +# define BLKBSZSET _IOW(0x12,113,size_t) +# endif /* !BLKROSET */ -#endif /* BLKROSET && __linux__ */ +# ifndef BLKGETSIZE64 +# define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */ +# endif +/* block device topology ioctls, introduced in 2.6.32 (commit ac481c20) */ +# ifndef BLKIOMIN +# define BLKIOMIN _IO(0x12,120) +# define BLKIOOPT _IO(0x12,121) +# define BLKALIGNOFF _IO(0x12,122) +# define BLKPBSZGET _IO(0x12,123) +# endif -#ifdef APPLE_DARWIN -#define BLKGETSIZE DKIOCGETBLOCKCOUNT32 -#endif +/* discard zeroes support, introduced in 2.6.33 (commit 98262f27) */ +# ifndef BLKDISCARDZEROES +# define BLKDISCARDZEROES _IO(0x12,124) +# endif -/* block device topology ioctls, introduced in 2.6.32 */ -#ifndef BLKIOMIN -#define BLKIOMIN _IO(0x12,120) -#define BLKIOOPT _IO(0x12,121) -#define BLKALIGNOFF _IO(0x12,122) -#define BLKPBSZGET _IO(0x12,123) -#endif +/* filesystem freeze, introduced in 2.6.29 (commit fcccf502) */ +# ifndef FIFREEZE +# define FIFREEZE _IOWR('X', 119, int) /* Freeze */ +# define FITHAW _IOWR('X', 120, int) /* Thaw */ +# endif -/* discard zeroes support, introduced in 2.6.33 (commait 98262f27) */ -#ifndef BLKDISCARDZEROES -#define BLKDISCARDZEROES _IO(0x12,124) -#endif +#endif /* __linux */ -#ifndef FIFREEZE -#define FIFREEZE _IOWR('X', 119, int) /* Freeze */ -#define FITHAW _IOWR('X', 120, int) /* Thaw */ +#ifdef APPLE_DARWIN +# define BLKGETSIZE DKIOCGETBLOCKCOUNT32 #endif #ifndef HDIO_GETGEO |